Abstract
A brief review of the dynamic response of hydrogen storage alloys is presented. This includes the determination of dynamic reaction kinetics and the comparison of dynamic and conventional pressure-composition-temperature relations. Alloys of both AB 5 and AB types were tested at pressures and temperatures of practical interest. Examples are shown of differences in reaction rate due to effects of intrinsic chemical kinetics, alloy hydrogen capacity and plateau pressure, and heat transfer limitations. Plateau pressures and reaction enthalpies for continuous-dynamic tests are shown to be different from those for conventional step-by-step tests. Also an apparent cyclic instability in the FeTiH 2 phase is described.
Published Version
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